DC modulation noise in clustered particulate media

Parker, D.A., Kay, G.E., Bissell, P.R. and Mercer, Tim orcid iconORCID: 0000-0002-1557-2138 (2002) DC modulation noise in clustered particulate media. Journal of Magnetism and Magnetic Materials, 242-24 . pp. 366-369. ISSN 03048853

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Official URL: http://dx.doi.org/10.1016/S0304-8853(01)01161-1

Abstract

Mallinson’s theory of recording media noise is extended to ensembles where the particles have an easy axis distribution or are clustered. The effect of clusters is that there is a critical value of packing fraction at which noise in the demagnetised state switches to a minimum. Comparison is made with measurements of DC modulation noise in double layer MP tape.


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